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83952980 = 22515127799
BaseRepresentation
bin1010000000100…
…00010101010100
312211222020211122
411000100111110
5132442443410
612155223112
72036405606
oct500202524
9184866748
1083952980
1143431131
1224147a98
1314515727
14b215176
157584e55
hex5010554

83952980 has 24 divisors (see below), whose sum is σ = 177475200. Its totient is φ = 33357600.

The previous prime is 83952977. The next prime is 83952989. The reversal of 83952980 is 8925938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83952989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10880 + ... + 16919.

It is an arithmetic number, because the mean of its divisors is an integer number (7394800).

Almost surely, 283952980 is an apocalyptic number.

It is an amenable number.

83952980 is an abundant number, since it is smaller than the sum of its proper divisors (93522220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83952980 is a wasteful number, since it uses less digits than its factorization.

83952980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27959 (or 27957 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 83952980 is about 9162.5858795430. The cubic root of 83952980 is about 437.8701824710.

The spelling of 83952980 in words is "eighty-three million, nine hundred fifty-two thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 151 302 604 755 1510 3020 27799 55598 111196 138995 277990 555980 4197649 8395298 16790596 20988245 41976490 83952980